nah the planetary economy is great as long as u have good research. with proper upgrades u can make more out of a planet than you would with those segs growing workers and interest with those workers.
aye only 60k turns and cps needed to make a planet out grow a astriod base if not more.
will need to check up on it but i think i remember at my current lvl
my astriod base still makes 2times more then i would trowing everything in a planet unless you own a lvl 4-6 gaia planet